/*
 * Copyright 2017-2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.springframework.data.relational.core.mapping.event;

/**
 * An event that is guaranteed to have an entity.
 *
 * @author Jens Schauder
 */
public class RelationalEventWithEntity<E> extends AbstractRelationalEvent<E> implements WithEntity<E> {

	private static final long serialVersionUID = 4891455396602090638L;
	private final E entity;

	RelationalEventWithEntity(E entity) {

		super(entity);

		this.entity = entity;
	}

	/**
	 * @return the entity to which this event refers. Guaranteed to be not {@literal null}.
	 */
	@Override
	public E getEntity() {
		return entity;
	}

	@SuppressWarnings("unchecked")
	@Override
	public Class<E> getType() {
		return (Class<E>) entity.getClass();
	}
}
